15138517004712 has 48 divisors (see below), whose sum is σ = 41519139480000. Its totient is φ = 4982296733856.

The previous prime is 15138517004711. The next prime is 15138517004717. The reversal of 15138517004712 is 21740071583151.

15138517004712 is a `hidden beast` number, since 1 + 5 + 1 + 3 + 8 + 5 + 170 + 0 + 471 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (15138517004711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1330735962 + ... + 1330747337.

It is an arithmetic number, because the mean of its divisors is an integer number (864982072500).

Almost surely, 2^{15138517004712} is an apocalyptic number.

15138517004712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15138517004712 is an abundant number, since it is smaller than the sum of its proper divisors (26380622475288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15138517004712 is a wasteful number, since it uses less digits than its factorization.

15138517004712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661483390 (or 2661483383 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 45.

Adding to 15138517004712 its reverse (21740071583151), we get a palindrome (36878588587863).

The spelling of 15138517004712 in words is "fifteen trillion, one hundred thirty-eight billion, five hundred seventeen million, four thousand, seven hundred twelve".